Ordering Recommendation

Optimize drug therapy and monitor patient adherence.

Mnemonic
RUFIN SP
Methodology

Quantitative Liquid Chromatography-Tandem Mass Spectrometry

Performed

Mon-Fri

Reported

1-4 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation

Timing of specimen collection: Pre-dose (trough) draw - At steady state concentration.

Collect

Plain Red. Also acceptable: Lavender (K2 or K3EDTA), or Pink (K2EDTA).

Specimen Preparation

Separate from cells ASAP or within 2 hours. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Whole blood. Gel separator tubes, light blue (citrate), or yellow (SPS or ACD solution).

Remarks
Stability

After separation from cells: Ambient: 2 weeks; Refrigerated: 2 weeks; Frozen: 2 weeks

Reference Interval
Therapeutic Range 5-30 µg/mL
Dose-related range
(values at dosages of 800-7200 mg/day)
3-30 µg/mL
Toxic Not well established

Interpretive Data

Adverse effects may include somnolence, vomiting, headache and fatigue.

Compliance Category

Laboratory Developed Test (LDT)

Note
Hotline History
N/A
CPT Codes

80339 (Alt code: G0480)

Components
Component Test Code* Component Chart Name LOINC
2003177 Rufinamide, Serum or Plasma 59323-6
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Banzel
  • banzel blood level
  • rufinamide blood level
Rufinamide, Serum or Plasma